Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9BTZ callsign genealogy
Currently held by KECK, ERIC J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W9BTZ's current licensee, walking backwards.
- KECK, ERIC JINgranted 2017-05-24cancelled 2019-09-06
Successor callsigns
Callsigns held now by people who previously held W9BTZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9BTZ, oldest first.
- MARTY, JOHN C IN2006-11-02 → cancelled 2019-01-03
- KECK, ERIC J KY2019-09-06 active